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1 /* | 1 /* |
2 * Copyright (C) 1999 Lars Knoll (knoll@kde.org) | 2 * Copyright (C) 1999 Lars Knoll (knoll@kde.org) |
3 * (C) 1999 Antti Koivisto (koivisto@kde.org) | 3 * (C) 1999 Antti Koivisto (koivisto@kde.org) |
4 * (C) 2001 Dirk Mueller (mueller@kde.org) | 4 * (C) 2001 Dirk Mueller (mueller@kde.org) |
5 * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008 Apple Inc. All rights reserv
ed. | 5 * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008 Apple Inc. All rights reserv
ed. |
6 * Copyright (C) 2008 Nikolas Zimmermann <zimmermann@kde.org> | 6 * Copyright (C) 2008 Nikolas Zimmermann <zimmermann@kde.org> |
7 * | 7 * |
8 * This library is free software; you can redistribute it and/or | 8 * This library is free software; you can redistribute it and/or |
9 * modify it under the terms of the GNU Library General Public | 9 * modify it under the terms of the GNU Library General Public |
10 * License as published by the Free Software Foundation; either | 10 * License as published by the Free Software Foundation; either |
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114 } | 114 } |
115 | 115 |
116 void ScriptLoader::detach() | 116 void ScriptLoader::detach() |
117 { | 117 { |
118 if (!m_pendingScript) | 118 if (!m_pendingScript) |
119 return; | 119 return; |
120 m_pendingScript->dispose(); | 120 m_pendingScript->dispose(); |
121 m_pendingScript = nullptr; | 121 m_pendingScript = nullptr; |
122 } | 122 } |
123 | 123 |
124 // Helper function | 124 // Helper function. Must take a lowercase language as input. |
125 static bool isLegacySupportedJavaScriptLanguage(const String& language) | 125 static bool isLegacySupportedJavaScriptLanguage(const String& language) |
126 { | 126 { |
127 // Mozilla 1.8 accepts javascript1.0 - javascript1.7, but WinIE 7 accepts on
ly javascript1.1 - javascript1.3. | 127 // Mozilla 1.8 accepts javascript1.0 - javascript1.7, but WinIE 7 accepts on
ly javascript1.1 - javascript1.3. |
128 // Mozilla 1.8 and WinIE 7 both accept javascript and livescript. | 128 // Mozilla 1.8 and WinIE 7 both accept javascript and livescript. |
129 // WinIE 7 accepts ecmascript and jscript, but Mozilla 1.8 doesn't. | 129 // WinIE 7 accepts ecmascript and jscript, but Mozilla 1.8 doesn't. |
130 // Neither Mozilla 1.8 nor WinIE 7 accept leading or trailing whitespace. | 130 // Neither Mozilla 1.8 nor WinIE 7 accept leading or trailing whitespace. |
131 // We want to accept all the values that either of these browsers accept, bu
t not other values. | 131 // We want to accept all the values that either of these browsers accept, bu
t not other values. |
132 | 132 |
133 // FIXME: This function is not HTML5 compliant. These belong in the MIME reg
istry as "text/javascript<version>" entries. | 133 // FIXME: This function is not HTML5 compliant. These belong in the MIME reg
istry as "text/javascript<version>" entries. |
134 typedef HashSet<String, CaseFoldingHash> LanguageSet; | 134 DCHECK_EQ(language, language.lower()); |
135 DEFINE_STATIC_LOCAL(LanguageSet, languages, ()); | 135 return language == "javascript" |
136 if (languages.isEmpty()) { | 136 || language == "javascript1.0" |
137 languages.add("javascript"); | 137 || language == "javascript1.1" |
138 languages.add("javascript1.0"); | 138 || language == "javascript1.2" |
139 languages.add("javascript1.1"); | 139 || language == "javascript1.3" |
140 languages.add("javascript1.2"); | 140 || language == "javascript1.4" |
141 languages.add("javascript1.3"); | 141 || language == "javascript1.5" |
142 languages.add("javascript1.4"); | 142 || language == "javascript1.6" |
143 languages.add("javascript1.5"); | 143 || language == "javascript1.7" |
144 languages.add("javascript1.6"); | 144 || language == "livescript" |
145 languages.add("javascript1.7"); | 145 || language == "ecmascript" |
146 languages.add("livescript"); | 146 || language == "jscript"; |
147 languages.add("ecmascript"); | |
148 languages.add("jscript"); | |
149 } | |
150 | |
151 return languages.contains(language); | |
152 } | 147 } |
153 | 148 |
154 void ScriptLoader::dispatchErrorEvent() | 149 void ScriptLoader::dispatchErrorEvent() |
155 { | 150 { |
156 m_element->dispatchEvent(Event::create(EventTypeNames::error)); | 151 m_element->dispatchEvent(Event::create(EventTypeNames::error)); |
157 } | 152 } |
158 | 153 |
159 void ScriptLoader::dispatchLoadEvent() | 154 void ScriptLoader::dispatchLoadEvent() |
160 { | 155 { |
161 if (ScriptLoaderClient* client = this->client()) | 156 if (ScriptLoaderClient* client = this->client()) |
162 client->dispatchLoadEvent(); | 157 client->dispatchLoadEvent(); |
163 setHaveFiredLoadEvent(true); | 158 setHaveFiredLoadEvent(true); |
164 } | 159 } |
165 | 160 |
166 bool ScriptLoader::isScriptTypeSupported(LegacyTypeSupport supportLegacyTypes) c
onst | 161 bool ScriptLoader::isValidScriptTypeAndLanguage(const String& type, const String
& language, LegacyTypeSupport supportLegacyTypes) |
167 { | 162 { |
168 // FIXME: isLegacySupportedJavaScriptLanguage() is not valid HTML5. It is us
ed here to maintain backwards compatibility with existing layout tests. The spec
ific violations are: | 163 // FIXME: isLegacySupportedJavaScriptLanguage() is not valid HTML5. It is us
ed here to maintain backwards compatibility with existing layout tests. The spec
ific violations are: |
169 // - Allowing type=javascript. type= should only support MIME types, such as
text/javascript. | 164 // - Allowing type=javascript. type= should only support MIME types, such as
text/javascript. |
170 // - Allowing a different set of languages for language= and type=. language
= supports Javascript 1.1 and 1.4-1.6, but type= does not. | 165 // - Allowing a different set of languages for language= and type=. language
= supports Javascript 1.1 and 1.4-1.6, but type= does not. |
171 | |
172 String type = client()->typeAttributeValue(); | |
173 String language = client()->languageAttributeValue(); | |
174 if (type.isEmpty() && language.isEmpty()) | |
175 return true; // Assume text/javascript. | |
176 if (type.isEmpty()) { | 166 if (type.isEmpty()) { |
177 type = "text/" + language.lower(); | 167 String lowerLanguage = language.lower(); |
178 if (MIMETypeRegistry::isSupportedJavaScriptMIMEType(type) || isLegacySup
portedJavaScriptLanguage(language)) | 168 return language.isEmpty() // assume text/javascript. |
179 return true; | 169 || MIMETypeRegistry::isSupportedJavaScriptMIMEType("text/" + lowerLa
nguage) |
| 170 || isLegacySupportedJavaScriptLanguage(lowerLanguage); |
180 } else if (RuntimeEnabledFeatures::moduleScriptsEnabled() && type == "module
") { | 171 } else if (RuntimeEnabledFeatures::moduleScriptsEnabled() && type == "module
") { |
181 return true; | 172 return true; |
182 } else if (MIMETypeRegistry::isSupportedJavaScriptMIMEType(type.stripWhiteSp
ace()) || (supportLegacyTypes == AllowLegacyTypeInTypeAttribute && isLegacySuppo
rtedJavaScriptLanguage(type))) { | 173 } else if (MIMETypeRegistry::isSupportedJavaScriptMIMEType(type.stripWhiteSp
ace()) || (supportLegacyTypes == AllowLegacyTypeInTypeAttribute && isLegacySuppo
rtedJavaScriptLanguage(type.lower()))) { |
183 return true; | 174 return true; |
184 } | 175 } |
185 | 176 |
186 return false; | 177 return false; |
187 } | 178 } |
188 | 179 |
| 180 bool ScriptLoader::isScriptTypeSupported(LegacyTypeSupport supportLegacyTypes) c
onst |
| 181 { |
| 182 return isValidScriptTypeAndLanguage(client()->typeAttributeValue(), client()
->languageAttributeValue(), supportLegacyTypes); |
| 183 } |
| 184 |
189 // http://dev.w3.org/html5/spec/Overview.html#prepare-a-script | 185 // http://dev.w3.org/html5/spec/Overview.html#prepare-a-script |
190 bool ScriptLoader::prepareScript(const TextPosition& scriptStartPosition, Legacy
TypeSupport supportLegacyTypes) | 186 bool ScriptLoader::prepareScript(const TextPosition& scriptStartPosition, Legacy
TypeSupport supportLegacyTypes) |
191 { | 187 { |
192 if (m_alreadyStarted) | 188 if (m_alreadyStarted) |
193 return false; | 189 return false; |
194 | 190 |
195 ScriptLoaderClient* client = this->client(); | 191 ScriptLoaderClient* client = this->client(); |
196 | 192 |
197 bool wasParserInserted; | 193 bool wasParserInserted; |
198 if (m_parserInserted) { | 194 if (m_parserInserted) { |
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337 } | 333 } |
338 | 334 |
339 bool isSVGScriptLoader(Element* element) | 335 bool isSVGScriptLoader(Element* element) |
340 { | 336 { |
341 DCHECK(element); | 337 DCHECK(element); |
342 return isSVGScriptElement(*element); | 338 return isSVGScriptElement(*element); |
343 } | 339 } |
344 | 340 |
345 void ScriptLoader::logScriptMimetype(ScriptResource* resource, LocalFrame* frame
, String mimetype) | 341 void ScriptLoader::logScriptMimetype(ScriptResource* resource, LocalFrame* frame
, String mimetype) |
346 { | 342 { |
347 bool text = mimetype.lower().startsWith("text/"); | 343 String lowerMimetype = mimetype.lower(); |
348 bool application = mimetype.lower().startsWith("application/"); | 344 bool text = lowerMimetype.startsWith("text/"); |
349 bool expectedJs = MIMETypeRegistry::isSupportedJavaScriptMIMEType(mimetype)
|| (text && isLegacySupportedJavaScriptLanguage(mimetype.substring(5))); | 345 bool application = lowerMimetype.startsWith("application/"); |
| 346 bool expectedJs = MIMETypeRegistry::isSupportedJavaScriptMIMEType(lowerMimet
ype) || (text && isLegacySupportedJavaScriptLanguage(lowerMimetype.substring(5))
); |
350 bool sameOrigin = m_element->document().getSecurityOrigin()->canRequest(m_re
source->url()); | 347 bool sameOrigin = m_element->document().getSecurityOrigin()->canRequest(m_re
source->url()); |
351 if (expectedJs) { | 348 if (expectedJs) { |
352 return; | 349 return; |
353 } | 350 } |
354 UseCounter::Feature feature = sameOrigin ? (text ? UseCounter::SameOriginTex
tScript : application ? UseCounter::SameOriginApplicationScript : UseCounter::Sa
meOriginOtherScript) : (text ? UseCounter::CrossOriginTextScript : application ?
UseCounter::CrossOriginApplicationScript : UseCounter::CrossOriginOtherScript); | 351 UseCounter::Feature feature = sameOrigin ? (text ? UseCounter::SameOriginTex
tScript : application ? UseCounter::SameOriginApplicationScript : UseCounter::Sa
meOriginOtherScript) : (text ? UseCounter::CrossOriginTextScript : application ?
UseCounter::CrossOriginApplicationScript : UseCounter::CrossOriginOtherScript); |
355 UseCounter::count(frame, feature); | 352 UseCounter::count(frame, feature); |
356 } | 353 } |
357 | 354 |
358 bool ScriptLoader::executeScript(const ScriptSourceCode& sourceCode, double* com
pilationFinishTime) | 355 bool ScriptLoader::executeScript(const ScriptSourceCode& sourceCode, double* com
pilationFinishTime) |
359 { | 356 { |
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520 if (isHTMLScriptLoader(element)) | 517 if (isHTMLScriptLoader(element)) |
521 return toHTMLScriptElement(element)->loader(); | 518 return toHTMLScriptElement(element)->loader(); |
522 | 519 |
523 if (isSVGScriptLoader(element)) | 520 if (isSVGScriptLoader(element)) |
524 return toSVGScriptElement(element)->loader(); | 521 return toSVGScriptElement(element)->loader(); |
525 | 522 |
526 return 0; | 523 return 0; |
527 } | 524 } |
528 | 525 |
529 } // namespace blink | 526 } // namespace blink |
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